Ubuntu newbie. Computer 7 months old, has Ubuntu installed. No problems, stalled, too many word windows open, and had to force restart. On restart, it will only boot to bios. All Ubuntu bios settings are gone. I took out battery and let laptop sit and tried again, still will only go to bios. Help. Laptop sits on table, doesn't travel. Only Ubuntu on laptop which is an asks x501a. It was running Ubuntu 12.04.